Health Hazard Evaluations (HHEs)

Each month we will update this page to highlight newly released final reports and information on new and emerging hazards we are evaluating. Check back often to see what we are up to!

What's New

Evaluation of Wildland Fire Fighters’ Exposures to Asbestos During a Prescribed Burn
Although exposures to fibers were below the lowest occupational exposure limit, HHE Program investigators recommended improving the decontamination line setup and procedures, calibrating the respirator fit testing equipment, fit testing and training employees, and ensuring employees wearing respirators requiring a face seal are clean shaven. Read the report: https://www.cdc.gov/niosh/hhe/reports/pdfs/2017-0076-3352.pdfpdf icon

Evaluation of Silica Exposures During Micro Trenching
Although no respirable crystalline silica was found during micro trenching, HHE Program investigators recommended the company improve dust control measures, improve elements of the company respiratory protection program, and perform periodic noise monitoring to determine which job tasks require hearing protection. Read the report: https://www.cdc.gov/niosh/hhe/reports/pdfs/2019-0020-3353.pdfpdf icon

2018 Health Hazard Evaluation Program Annual Report
The NIOSH Health Hazard Evaluation (HHE) Program is pleased to share its 2018 annual report. Our report includes summaries of projects that were interesting and other highlights of our year. We hope the report stimulates conversations about who the HHE Program is and how we make a difference for the health and safety of employees throughout the United States. The annual report is available here: https://www.cdc.gov/niosh/hhe/pdf/2018-Health-Hazard-Evaluation-Program-Annual-Report.pdfpdf iconpdf icon

Page last reviewed: September 28, 2018, 12:00 AM